Eccentricity Fault Diagnosis Studying for a Round Rotor Synchronous Machine

International Journal of Smart Electrical Engineering

مقاله 6، دوره 03، شماره 04، بهمن 2014، صفحه 231-238   

نوع مقاله: Research Paper

نویسندگان

Peyman Naderi^{* 1}؛ Sahar .M. Sharouni²

¹Faculty of Electrical Engineering, ShahidRajaee Teacher Training University, Tehran, Iran

²2Faculty of Electrical Engineering, Islamic Azad University of Borujerd , Borujerd, Iran

چکیده

The paper presents a mathematical base modeling combined to Modified-Winding -Function-Approach (MWFA) for eccentricity fault detection of a round-rotor synchronous machine. For this aim, a 6-pole machine is considered, and the machine inductances are computed by MWFA in healthy and also under eccentricity fault. A numerical discrete-time method has been proposed to machine modeling in voltage-fed case, and an exact analytical method is proposed to calculate the machine's currents and torque. A method is introduced for both static and dynamic eccentricity fault diagnosis, which is proposed for first time.  A mathematical base method is introduced for machine modeling, and new results are obtained to a novel method addressing for eccentricity fault diagnosis. The method is validated by Finite-Element-Method (FEM) so accuracy of the proposed method is proofed.

کلیدواژه‌ها

Air-gap function؛ dynamic eccentricity؛ static eccentricity؛ synchronous machine